79700749 has 2 divisors, whose sum is σ = 79700750. Its totient is φ = 79700748.

The previous prime is 79700741. The next prime is 79700759. The reversal of 79700749 is 94700797.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78057225 + 1643524 = 8835^2 + 1282^2 .

It is a cyclic number.

It is not a de Polignac number, because 79700749 - 2³ = 79700741 is a prime.

It is a super-2 number, since 2×79700749² = 12704418782322002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79700741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39850374 + 39850375.

It is an arithmetic number, because the mean of its divisors is an integer number (39850375).

Almost surely, 2^79700749 is an apocalyptic number.

It is an amenable number.

79700749 is a deficient number, since it is larger than the sum of its proper divisors (1).

79700749 is an equidigital number, since it uses as much as digits as its factorization.

79700749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 111132, while the sum is 43.

The square root of 79700749 is about 8927.5275972690. The cubic root of 79700749 is about 430.3490027613.

The spelling of 79700749 in words is "seventy-nine million, seven hundred thousand, seven hundred forty-nine".